What is the average number of hours a plant needs sunlight?

Every plant has different sunlight hour requirements. Plants need light ranging from 4 to 20 hours daily. A good rule of thumb, though, is to mimic natural conditions again. The number of daylight hours outside is a baseline for what most plants will need. Plants in their natural habitats have light for about 12 hours daily. So, if you’re completely lost with what your plant needs, start there.

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